The building machine trailers UBHL and UBAL as well as the three-way dumper UDKL are the new truck trailers in the UNSINN product range with several details. What can they do? The UNSINN trailers with pneumatic brakes can transport even heavy loads easily. The permissible total weight for Type UDKL is 11.9 tons, for UBHL 14 tons and for Type UBAL 8.8 tons.